baber/WOPTO huggingface dataset:
Patent DE-2636087-A1 (DE)
Title: Bright image reflex viewfinder - has inverting lens aperture shaped as oval with parallel sides and semicircular ends
Inventor: LIETAR CHRISTIAN
IPC: G03B19/12
Filed: 1976-08-11
Abstract: The inverting lens (which re-erects the inverted image the camera lens produces) receives light from the common area of three overlapping circles, viz from a region bounded by two circular arcs. The aperture normally used with the inverting lens is circular, but this gives a dim image, or - with an oversize aperture - one that is not uniformly bright. The present aperture shape approximates to that of the region bounded by the two circular arcs. The approximation is pref. in the form of an oval, with parallel sides and semi-circular ends, and having the same overall length and breadth as the ideal form. A prism (3) with a semi-transparent mirror layer (4) is installed behind the camera lens (2). The light is reflected to the viewfinder lens (5).
Patent DE-2636943-A1 (DE)
Title: Detector for trace electroactive materials - using electrochemical thin layer flow cell operating on wall jet principle
Inventor: FLEET BERNARD
IPC: G01N27/28
Filed: 1976-08-17
Abstract: An electrochemical thin layer flow cell operating on the wall jet principle, includes (a) a sensor electrode, (b) a soln. inlet line terminating in a fine nozzle normal to but displaced from the sensor electrode surface, (c) a soln. exit line, (d) at leastr one other electrode and (e) a controller for applying a periodically changing voltage to the sensor electrode, one part of each cycle functioning as a detector voltage and another part as a cleaning voltage. The cell is used for detecting an electroactive species in a flow stream, with the soln. contg. the species forced through the nozzle, forming a jet that spreads radially over the sensor electrode surface in a thin film. The current is measured at the sensor electrode during the detection part of the cycle. The cell is pref. used with a high performance, high press. liq. chromatography column, the column effluent entering the soln. inlet line of the cell. The detector is useful for continuous monitoring of trace electroactive materials in water, in flow anodic stripping voltammetry and inorganic electroanalytical chemisty. Subnanogram, quantities can be detected. The cleaning cycle provides reliability and continuous operation.
Patent DE-2645785-A1 (DE)
Title: Curd prodn. from skim milk - by evapn., lactose crystallisation, pasteurisation and curdling
Inventor: ROBERG JOSEF
IPC: A23C19/076
Filed: 1976-10-09
Abstract: Prodn. of curd from skim milk comprises (a) dewatering skim milk in a ratio of 1:7-10 in an evaporator; (b) crystallising out the lactose in a crystalliser; (c) removing the lactose crystals in a decanter; (d) pasteurising the product in a heater; and (e) cooling, acidulating and curdling the product and packaging the resulting curd. The process allows cheese prodn. to be operated continuously without problems of whey disposal. Steps (a)-(c) can be repeated with the addn. of a small amt. of water.
Patent DE-2646842-A1 (DE)
Title: Hip joint prosthesis with exchangeable joint head - has tenon on anchoring shaft fitting into shaped hollow section in head
Inventor: HUX HANS
IPC: A61F2/00
Filed: 1976-10-16
Abstract: The hip joint prosthesis has an exchangeable joint head (4) having a hollow section (8) for fixing into position. A tenon (12) is shaped to enter this hollow section (8). The tenon (12) is part of the anchoring shaft (10) of the anchoring piece (6) of metal. The congruent surfaces (14, 16) in the matching regions of the tenon (12) and hollow section (8) are sections of surfaces having guide curves of defined limits. The curves deviate from a perfect circular form. They can roughly form a triangular shape having curved sides and rounded corners. The tenon and hollow section can be of matching truncated conical shape.
Patent DE-2700838-A1 (DE)
Title: Curtain track system with smooth running rings - has glide member on ring engaging in track on curtain rod preventing canting of rings
Inventor: HEPPERLE ERWIN
IPC: A47H13/00
Filed: 1977-01-11
Abstract: The curtain track system comprises a curtain rod (10) with a curtain track (11) let in to the upper side in which several curtain rings (12) can be fitted, the latter being provided with a sliding and/or rolling member (15) which points towards the centre of the ring and fits into the track for smooth movement. In the rest position of the rings the ring plane runs at right angles to the longitudinal axis of the curtain rod but the rings can be swung about a horizontal axis running transversely to the longitudinal axis of rod. The curtain thus always runs smooth without any canting so that there is no frictional resistance which could affect the curtains. This is ensured but the curtain ring being supported at only one point on the track. The sliding and/or rolling member for the curtain ring can be an arm (15) which points towards the ring centre and has a rounded contact face which runs transversely to the ring plane and glides along the base of a groove in the curtain track.
Patent DE-2706232-A1 (DE)
Title: Maintaining constant spacing between plasma arc and workpiece - by microprocessor comparing actual with automatically addressed reference tension
Inventor: HAHN GUENTER
IPC: B23K9/073
Filed: 1977-02-15
Abstract: Maintaining constantly the distance of a tool from a workpiece to be processes, the surface of which is irregular, is partic. applicable to a plasma burner. The electrical potential of the plasma cutting beam provides a signal which is compared with a nominal value signal in a differential amplifier and the deviation is transmitted to a tool adjusting mechanism for correcting the spacing between tool and workpiece. when the cutting operation is commenced, the tool is positioned at a predetermined nominal position. The electrical potential of the cutting beam is noted and stored as a spacing reference value in a nominal value store. The nominal potential is converted by an analog-digital converter and addressed to a digital store from which it is transmitted to a microprocessor acting as a comparator. Method saves the time otherwise wasted in setting a new nominal value for the spacing of the burner relatively to the workpiece, each tiem a changeover is made. The nominal value can be fixed in a simple manner for the most varied working conditions.
Patent DE-2714315-A1 (DE)
Title: Collision protection system for low flying aircraft - uses millimetre short range radar sensitive to electric grid frequency
Inventor: KEYDEL WOLFGANG DIPL PHYS DR R
IPC: G01S13/935
Filed: 1977-03-31
Abstract: The collision protection system for low flying aircraft comprises a millimetre waveband radar with a low frequency receiver, extra sensitive to mains frequency. The system is especially sensitive for power lines. When used on helicopters the systems picks up power which would otherwise by obscured by the vibration of the aircraft and pilot. The system normally is in a standby mode and is switched on when spacings from objects falls below a set leverl, or when near power lines.
Patent DE-2715971-A1 (DE)
Title: Heat-shrinkable film pack - with excessive shrinkage at bottom edge prevented by having longitudinal axis across original mfg. direction
Inventor: WALSER HANS PETER ING GRAD
IPC: B29C48/10
Filed: 1977-04-09
Abstract: Heat-shrinkable packs are produced continuously from successive lengths cut off continuous thermoplastic film by welding and cutting, the axis of each pack length being at right angles to the original mfg. direction. This prevents excessive shrinkage at the bottom edge of the pack (caused otherwise through residual stresses in the processing direction of the blown tubing). Pref. the thermoplastic film tubing is made by extruding, blowing, cooling, and passing through rollers and cut longitudinally at the centre line into two symmetrical halves.
Patent DE-2722984-A1 (DE)
Title: Large monolithic hard setting shell mfr. - using air or water supported foil inserted in form before material hardens
Inventor: SCHNITZER JOHANN GEORG DR MED
IPC: E01D21/00
Filed: 1977-05-20
Abstract: The mfg. process for shell units, of self-hardening material, such as concrete, is esp. suitable for producing large-surface units as used in building structure, made in a single piece on site. A sheet of foil (10) is introduced into the form for the shell unit, and held in it so that it is coated with the hard-setting material before this hardens. Compressed air may be used as load bearing medium for this, and the foil may be in the shape of an inflatable hollow unit (10, 12), pref. closed, or open with its open side sited on the substructure with a sealing effect. Water may also be used as load bearing medium. The foil may be of plastic, rubber, textile or other materials, and the hard-setting material may be plastic, plaster, cement, mortar or concrete. This applied to rapid, simple and inexpensive erection of shell units of any size.
Patent DE-2724534-A1 (DE)
Title: Automatic synchronisation of contra-rotating imbalanced exciter shafts - has positive link between gearings of each shaft and connecting shaft in two parts
Inventor: SCHUECKER FRANZ-JOSEF
IPC: B06B1/16
Filed: 1977-05-31
Abstract: The imbalance exciter hafts (4, 5) which are mounted parallel to each other on an oscillation machine where they are driven opposite each other, are each provided with toothed gears (8, 9) which are positively connected together by a shaft (10) which is attached to corresponding gear wheels (11, 12) on the gears (8, 9) with the drive for the exciter shafts being driven by the gears (8, 9). It is possible for each exciter shaft to have its own drive motor (17, 18) which provides improved running for the connecting shaft under normal conditions i.e. with constant rotations of the motors and normal loading of the machine. Since the forces which are to be taken up by the gearing and connecting shaft are very low, the gearing and shaft need only have small dimensions but have a long working life due to the reduced stress. The connecting shaft (10) is pref. in two parts detachably connected together for easy assembly and dismantling.
Patent DE-2730118-A1 (DE)
Title: Preventing scale formation on steel when heating in oxidising atmos. - by applying substance having affinity for oxygen, esp. aluminium and/or carbon
Inventor: FELSCH CHRISTIAN PROF
IPC: C21C5/28
Filed: 1977-07-04
Abstract: When heating steel in an oxidising atm. the formation of scale is prevented by applying to the surface either continuously or intermittently a substance having an affinity for oxygen, pref. Al, C or a mixt. of C and Al in fluidised form, pref. a mixt. composed of 80 wt. % C and 20 wt. % Al. Used for treating steel prior to rolling, and when smelting scrap in an open-hearth furnace. Method improves the heat transfer and saves heating-up times and energy.
Patent DE-2731697-A1 (DE)
Title: Thermal processing of fine particle material e.g. cement meal - by feeding preheated material onto rotating plate for calcining then into by firing zone, using exhaust gas for preheating
Inventor: HEINEMANN OTTO
IPC: C04B7/43
Filed: 1977-07-13
Abstract: Thermal treatment of fine particle materials involves a preheat zone, a calcining zone and a firing or sintering zone. The heating of the material in the preheat zone is obtd. by contacting it with the exhaust gases from the fired zones. The calcining zone has additional fuel added to it. The calcining is carried out on an inclined rotating table and at least part of the additional fuel requirement is mixed into the material. The preheating is pref. effected in a cyclone mixer using the exhaust gases from the calcining zone. The outlet gases from the cooler and the sintering zone can be injected into the calcining zone. The gases from the sinter zone can also by-pass the calcining and preheat zones, and be fed to the calcining zone cooler outlet air. Used esp. for sintering of cement crude meal. The residence time of material in the process can be widely varied for different throughputs and in all cases a very uniform treatment of all the particles in the calcining zone guaranteed.
Patent DE-2732053-A1 (DE)
Title: Coffee machine filter drip catcher - pivots into position for use and has angled base with sides and bag
IPC: A47J31/06
Filed: 1977-07-15
Abstract: Coffee machine has a filter(12) into which hot water is poured from containers through one or more outlet pipes. The filter(12) has a drip-catcher(14) pivoted towards it depending on the position of the coffee pot(13), into various operating positions. The drip-catcher(14) has an angled base(17) together with sides(20, 21) which are joined to part of the filter. The free edges of the sides(20, 21) are pivot mounted on the corner(23) diagonally opposite the drip catcher bag(22). The drip catcher(14) is positioned outside the outlet(29) of the filter(12) and the inlet(33) of the coffee pot(13). The bottom(19) of the drip catcher(14) has a slide cam(24) with a run-up curve(25) by which the drip catcher(14) is moved from the coffee pot(13) into a back position which does not impede the flow of coffee. The bottom(19) of the drip catcher(14) has a curved, rounded end(26).
Patent DE-2736808-A1 (DE)
Title: High speed surgical drill used with microscope - has pivotable latch with spring for retaining drill bit in socket of housing
Inventor: WALDRON STEPHEN HINDS
IPC: A61B17/28
Filed: 1977-08-16
Abstract: A surgical drill for use in the eye, ear or throat in conjunction with a microscope has a bit with an integral bushing (21) and a gear wheel (17) that is removably secured in the socket (11) of the housing (10) to be driven via a gear wheel (24), by a latch (28). The bushing (21) has a shoulder (27) that is normally received in a recess (36) of the latch and is biased inwardly by a latch spring (32). The latch is rotatable about a shaft (31) and eventually disengages the bushing completely, permitting removal of the drill bit. In intermediate positions, a tapered edge of the latch engages the shoulder.
Patent DE-2741255-A1 (DE)
Title: Polishing implement for varnished surfaces - has vibration drive in housing in form of handle and is connected to insert with disc
Inventor: GLAGE ULRICH
IPC: B24B23/04
Filed: 1977-09-14
Abstract: The implement is for surface treatment esp. for polishing varnished or painted surfaces. There is a housing (10) of a vibration drive (26, 28) in the form of a handle. While an insert (12) is connected with the housing and carries an operating disc (14). This insert (12) is connected with the housing so that it can be replaced. Specifically, there is a plug connection (48, 54) between the housing and support insert. The implement can be a rod-shaped housing (10) with a lidded battery chamber (34) on the side of the vibration drive away from the insert.
Patent DE-2743397-A1 (DE)
Title: Document file with serrated plastics retaining strips - which engage narrow part of keyhole slot in cover strip
Inventor: ZIPPEL HERBERT
IPC: B42F13/04
Filed: 1977-09-27
Abstract: A document file has front (1) and back (2) covers joined by a fold (2) which grips a reinforcing strip (4). Narrow strips of resilient plastic (5) are attached to this reinforcing strip (5). These strips (5) of resilient plastic have a large number of parallel transverse ribs. A cover strip (9) has two keyhole slots (10). The wider part of the keyhole permits entry of the resilient strip (5). The cover strip is then pressed down onto the documents and then moved in a longitudinal direction so that one of the thinner parts of the resilient strips (5) engages the narrow part of the keyhole slot (10).
Patent DE-2747215-A1 (DE)
Title: Desalination plant for distilled water and salts recovery - reduces considerably the ratio of energy required to water produced
Inventor: GHLAMFARSA S M CHAHPAR MOSTOFI
IPC: B01D1/26
Filed: 1977-10-21
Abstract: For the recovery of salts and water from aq. solns., the soln. for treatment is compressed, preheated with water vapour and freed from salts with a negative solubility gradient by heating with steam. The soln. is then detented with the generation of steam, and from the remaining highly concentrated brine, one or more salts having positive solubility gradients are separated out, wholly or partly by crystallisation and vapourisation. All conventional methods using detenting-vapourisation and negative solubility required a large amt. of energy. This process reduces the energy consumption, whilst using the simplest equipment, by 10-30% per cubic metre of water.
Patent DE-2750532-A1 (DE)
Title: Anchoring medium injector for attachments fastened in orificed wall - uses two-component medium initially kept in foil tube with separate chambers
Inventor: FISCHER ARTUR DR
IPC: B65D35/28
Filed: 1977-11-11
Abstract: Installation for the injection of a bonding device into a borehole of a brick built structure to ancor an attachment element. The bonding device is filled into a foil tube which has a chamber for each component which can be mixed prior to injection. The foil tube can be fixed into a holder held by the front carrying the injection nozzle on one side and by its rear web shaped end on the other side. The tube can be emptied through a fork like adjustable slider which can be moved from the rear end of the tube in the direction of the injection nozzle.
Patent DE-2752890-A1 (DE)
Title: Upright piano with sound transmission panels - mounted on front frame and have rectangular section opening filled with metallic or fabric mesh
Inventor: FRANZMANN RAINER
IPC: G10C3/02
Filed: 1977-11-26
Abstract: Sound quality of an upright piano is enhanced by panels of sound transmitting material located in the front facia. The main frame (1) carries the mechanism (5) and the string assembly (3). The keyboard (6) is supported centrally on the main frame. The front plate has a number of rectangular section openings (2) that have either metallic or fabric mesh panels allowing sound transmission.
Patent DE-2755811-A1 (DE)
Title: Multi-level electric equipment housing - has ventilation provided by slots that encourage natural convection air flow
Inventor: IKENO KICHIHIRO
IPC: H05K7/20
Filed: 1977-12-14
Abstract: A multi-level cabinet for the storage of electrical equipment is designed to enhance the flow of air through the unit. Each level is formed by a spacing unit (18) with a base, a back and two sides with an inclined surface. The front panels (19), secured to the main cabinet frame, ahve slots (19a) for the inlet of air. Individual pieces of electrical equipment (20) are located at each level. Air enters through the front slots and flows vertically through each unit.
Patent DE-2758258-A1 (DE)
Title: Air cooling for IC engine auxiliary generator - has air flow path arranged to be parallel to flow path for engine
Inventor: GRUENOW JOACHIM
IPC: F02B67/04
Filed: 1977-12-27
Abstract: The cooling arrangement is for an air-cooled IC engine auxiliary generator, partic. an alternator with diodes for a vehicle. The unit is positioned alongside the engine, driven by a belt (6) from the crankshaft and with its own cooling fan. The generator (10) and fan (14) assembly is so positioned that the airflow through it is parallel to that through the engine cooling duct (5), not in series as is usual. The fan can be fitted at either end of the generator.
Patent DE-2801846-A1 (DE)
Title: 5-Carboxy and 5-carbamoyl-prostacyclin derivs. - with hypotensive, diuretic, antiarrhythmic, thrombocyte aggregation inhibiting and gastric secretolytic activity
Inventor: VORBRUEGGEN HELMUT PROF
IPC: C07D307/937
Filed: 1978-01-13
Abstract: Prostacyclin derivs. of formula (I) and salts of (I; R1 is OH) with physiologically acceptable bases are new. (R1 is H, alkyl, cycloalkyl, aryl or heterocyclyl; B is opt. branched 2-10 C alkylene; A is CH2CH2, CH=CH cis or trans) or C triple bond C; W is opt. functionally modified CHOH or opt. functionally modified CMeOH; D and E together form a direct bond, or D is opt. branched 1-5 C aliylene and E is O, S or a direct bond; R2 is alkyl, cycloalkyl, opt. substd. aryl or heterocyclyl; R3 is opt. functionally modified OH; R4 is OR1 or NH2).
Patent DE-2809635-A1 (DE)
Inventor: FUJIKURA YOSHIAKI
IPC: C11B9/00
Filed: 1978-03-06
Abstract: 4-exo-Hydroxy-4-homoisotwistane corresponds to the formula (I): <IMAGE>   It makes it possible to prepare a fragrance and flavour composition developing a characteristic odour of fresh leaves.
Patent DE-2811461-A1 (DE)
Title: Filing card film insertion mechanism - has work plate with bosses at position of card holding flaps
Inventor: AMBERG ECKARD ING GRAD
IPC: B42F19/04
Filed: 1978-03-16
Abstract: The film insertion mechanism is for single-layer filing cards for X-ray records etc., these cards having apertures and flaps at one or more sides to secure several rows of photographs slid underneath them. It has a work plate(1) with small protrusions(15-49) at the position of the flaps(14) of a stored and centred filing card(11-13). A frame(2) is pressed against the plate, having ribs(68-72) between the rows of photographs on the card. The frame can be guided on the work plate.
Patent DE-2815196-A1 (DE)
Title: Vacuum cleaner suction pipe with adjustable air intake - has two telescopic parts with offset air holes, acting against spring
Inventor: VOIGT FRIEDER DR ING
IPC: A47L9/24
Filed: 1978-04-07
Abstract: The vacuum cleaner suction pipe is formed from telescopically sliding parts (1, 2) of different diameters. A helical spring (9) is coupled to the two parts to slide them telescopically. The inner and outer tube parts each have holes (6, 7) offset relative to each other when the spring is relaxed. They can be sealed by a sealing lip (5) which can likewise be displaced in the longitudinal direction. The telescopic parts only slide into each other in dependence on the sliding force so that the supply of extra air only takes place when a correspondingly high sliding force is used.
Patent DE-2816782-A1 (DE)
Title: Generator for acoustic signals in telephone subscriber stations - has two multivibrators with different frequencies which are made alternately operative by third multivibrator
Inventor: FORDAN GUENTER
IPC: H04M19/04
Filed: 1978-04-18
Abstract: In the telephone subscriber station, on acoustic piezoelectric transducer (Pz) is used, connected between the rectified input and multivibrators. Two of the multivibrators (K1, K2) have specified but different frequencies (f1, f2) made alternately operative at an adjustable frequency (f3) by a third multivibrator (K3). Outputs of the two first multivibrators (K1, K2) are connected to a control transistor element (T1) by which the piezoelectric transducer (Pz) is charged and discharged in the rhythm of the two frequencies (f1, f2).
Patent DE-2817261-A1 (DE)
Title: Aluminium-silicon-magnesium alloy - for prodn. of seamless tubes
Inventor: SETZER WILLIAM C
IPC: C22C21/08
Filed: 1978-04-20
Abstract: Prodn. comprises extruding at a temp. >455 degrees C, an alloy of compsn. (wt.%) 0.3-1.5 (0.4-1.0)Mg, 0.3-1.3 (0.4-0.9) Si, 0.03-0.4 (0.05-0.35)Cr, 0.03-0.2 (0.05-0.15)Zr, is not >0.4 (0.03-0.3)Mn, and, as impurities, (up to) 0.6 Fe, 0.5 Zn, 0.3 Cu, 0.15 V, 0.1 Ti, 0.008 B, giving a total of is not >0.1, with 0.5 of other elements, Mg and Si being uniformly dispersed in the alloy. The tube blank is quenched at the exit of the press, at a rate of 550-5500 degrees C/min. to a least 177 degrees C and cold drawn to its final dimension in one stage, with a max. reduction of 90%. Method is cheap as a soln. heat treatment is not necessary either during extrusion or cold drawing.